== sanity test 398b: DIO and buffer IO race ============== 18:53:20 (1788648800) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 7.67242 s, 6.6 MB/s mix direct rw 4096 by fio with 4 jobs... mix buffer rw 4096 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=180038: Sat Sep 5 18:55:54 2026 read: IOPS=11, BW=47.0KiB/s (48.1kB/s)(5992KiB/127476msec) clat (usec): min=45, max=482318, avg=46338.86, stdev=32413.24 lat (usec): min=45, max=482320, avg=46340.14, stdev=32413.28 clat percentiles (usec): | 1.00th=[ 51], 5.00th=[ 12256], 10.00th=[ 17171], 20.00th=[ 22414], | 30.00th=[ 27395], 40.00th=[ 33424], 50.00th=[ 39584], 60.00th=[ 46924], | 70.00th=[ 54789], 80.00th=[ 66847], 90.00th=[ 83362], 95.00th=[102237], | 99.00th=[149947], 99.50th=[170918], 99.90th=[312476], 99.95th=[480248], | 99.99th=[480248] bw ( KiB/s): min= 7, max= 103, per=25.54%, avg=46.74, stdev=18.45, samples=250 iops : min= 1, max= 25, avg=11.00, stdev= 4.63, samples=250 write: IOPS=12, BW=49.4KiB/s (50.6kB/s)(6296KiB/127476msec); 0 zone resets clat (usec): min=912, max=300520, avg=36794.32, stdev=40304.66 lat (usec): min=914, max=300521, avg=36799.04, stdev=40304.91 clat percentiles (usec): | 1.00th=[ 1045], 5.00th=[ 1172], 10.00th=[ 1549], 20.00th=[ 3392], | 30.00th=[ 6521], 40.00th=[ 15270], 50.00th=[ 24773], 60.00th=[ 33162], | 70.00th=[ 46400], 80.00th=[ 64750], 90.00th=[ 94897], 95.00th=[117965], | 99.00th=[179307], 99.50th=[193987], 99.90th=[240124], 99.95th=[299893], | 99.99th=[299893] bw ( KiB/s): min= 6, max= 118, per=25.57%, avg=49.09, stdev=21.53, samples=250 iops : min= 1, max= 29, avg=11.60, stdev= 5.39, samples=250 lat (usec) : 50=0.29%, 100=1.17%, 250=0.26%, 1000=0.20% lat (msec) : 2=6.67%, 4=4.69%, 10=6.74%, 20=10.16%, 50=38.51% lat (msec) : 100=24.02%, 250=7.19%, 500=0.10% cpu : usr=0.05%, sys=4.38%, ctx=6267, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180039: Sat Sep 5 18:55:54 2026 read: IOPS=11, BW=45.9KiB/s (47.0kB/s)(5940KiB/129340msec) clat (usec): min=38, max=581571, avg=48610.33, stdev=37018.75 lat (usec): min=38, max=581572, avg=48611.55, stdev=37018.76 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 11469], 10.00th=[ 17433], 20.00th=[ 23200], | 30.00th=[ 28967], 40.00th=[ 34341], 50.00th=[ 40633], 60.00th=[ 47449], | 70.00th=[ 56361], 80.00th=[ 68682], 90.00th=[ 89654], 95.00th=[110625], | 99.00th=[168821], 99.50th=[202376], 99.90th=[438305], 99.95th=[583009], | 99.99th=[583009] bw ( KiB/s): min= 6, max= 103, per=24.75%, avg=45.29, stdev=18.39, samples=255 iops : min= 1, max= 25, avg=10.64, stdev= 4.59, samples=255 write: IOPS=12, BW=49.1KiB/s (50.3kB/s)(6348KiB/129340msec); 0 zone resets clat (usec): min=958, max=256490, avg=35917.41, stdev=39222.95 lat (usec): min=958, max=256491, avg=35920.63, stdev=39222.08 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 1172], 10.00th=[ 1516], 20.00th=[ 3490], | 30.00th=[ 6915], 40.00th=[ 15401], 50.00th=[ 24773], 60.00th=[ 33817], | 70.00th=[ 46400], 80.00th=[ 62129], 90.00th=[ 87557], 95.00th=[109577], | 99.00th=[175113], 99.50th=[227541], 99.90th=[252707], 99.95th=[256902], | 99.99th=[256902] bw ( KiB/s): min= 7, max= 143, per=25.48%, avg=48.91, stdev=23.75, samples=252 iops : min= 1, max= 35, avg=11.55, stdev= 5.96, samples=252 lat (usec) : 50=0.23%, 100=1.37%, 250=0.10%, 500=0.07%, 750=0.03% lat (usec) : 1000=0.13% lat (msec) : 2=6.93%, 4=4.46%, 10=6.77%, 20=9.80%, 50=37.92% lat (msec) : 100=25.52%, 250=6.48%, 500=0.16%, 750=0.03% cpu : usr=0.06%, sys=4.28%, ctx=6275, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180040: Sat Sep 5 18:55:54 2026 read: IOPS=11, BW=46.1KiB/s (47.2kB/s)(6028KiB/130816msec) clat (usec): min=43, max=250965, avg=47817.86, stdev=32244.12 lat (usec): min=43, max=250967, avg=47821.63, stdev=32246.78 clat percentiles (usec): | 1.00th=[ 51], 5.00th=[ 12518], 10.00th=[ 16909], 20.00th=[ 22676], | 30.00th=[ 27919], 40.00th=[ 33817], 50.00th=[ 41157], 60.00th=[ 48497], | 70.00th=[ 57410], 80.00th=[ 68682], 90.00th=[ 88605], 95.00th=[109577], | 99.00th=[152044], 99.50th=[183501], 99.90th=[244319], 99.95th=[250610], | 99.99th=[250610] bw ( KiB/s): min= 7, max= 110, per=25.04%, avg=45.82, stdev=19.38, samples=256 iops : min= 1, max= 27, avg=10.78, stdev= 4.88, samples=256 write: IOPS=11, BW=47.9KiB/s (49.0kB/s)(6260KiB/130816msec); 0 zone resets clat (usec): min=903, max=589337, avg=37442.53, stdev=43472.34 lat (usec): min=905, max=589338, avg=37456.41, stdev=43486.98 clat percentiles (usec): | 1.00th=[ 1029], 5.00th=[ 1156], 10.00th=[ 1336], 20.00th=[ 3032], | 30.00th=[ 6259], 40.00th=[ 15401], 50.00th=[ 25297], 60.00th=[ 35390], | 70.00th=[ 46924], 80.00th=[ 63177], 90.00th=[ 92799], 95.00th=[116917], | 99.00th=[179307], 99.50th=[225444], 99.90th=[295699], 99.95th=[591397], | 99.99th=[591397] bw ( KiB/s): min= 6, max= 134, per=24.68%, avg=47.39, stdev=24.33, samples=257 iops : min= 1, max= 33, avg=11.18, stdev= 6.11, samples=257 lat (usec) : 50=0.42%, 100=1.01%, 250=0.13%, 1000=0.23% lat (msec) : 2=7.45%, 4=4.56%, 10=5.89%, 20=10.42%, 50=37.11% lat (msec) : 100=25.52%, 250=7.06%, 500=0.16%, 750=0.03% cpu : usr=0.07%, sys=4.48%, ctx=6544, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180041: Sat Sep 5 18:55:54 2026 read: IOPS=11, BW=46.8KiB/s (47.0kB/s)(6052KiB/129219msec) clat (usec): min=34, max=303118, avg=47208.62, stdev=33296.63 lat (usec): min=35, max=303118, avg=47209.83, stdev=33296.63 clat percentiles (usec): | 1.00th=[ 50], 5.00th=[ 2900], 10.00th=[ 15533], 20.00th=[ 22676], | 30.00th=[ 27395], 40.00th=[ 33162], 50.00th=[ 39584], 60.00th=[ 47449], | 70.00th=[ 57410], 80.00th=[ 67634], 90.00th=[ 87557], 95.00th=[104334], | 99.00th=[164627], 99.50th=[189793], 99.90th=[246416], 99.95th=[304088], | 99.99th=[304088] bw ( KiB/s): min= 7, max= 111, per=25.67%, avg=46.98, stdev=19.98, samples=251 iops : min= 1, max= 27, avg=11.07, stdev= 5.02, samples=251 write: IOPS=12, BW=48.3KiB/s (49.4kB/s)(6236KiB/129219msec); 0 zone resets clat (usec): min=956, max=621534, avg=36927.39, stdev=42135.48 lat (usec): min=957, max=621537, avg=36943.57, stdev=42131.58 clat percentiles (usec): | 1.00th=[ 1029], 5.00th=[ 1172], 10.00th=[ 1434], 20.00th=[ 3687], | 30.00th=[ 7242], 40.00th=[ 16057], 50.00th=[ 26084], 60.00th=[ 35914], | 70.00th=[ 46924], 80.00th=[ 62129], 90.00th=[ 88605], 95.00th=[112722], | 99.00th=[175113], 99.50th=[208667], 99.90th=[346031], 99.95th=[624952], | 99.99th=[624952] bw ( KiB/s): min= 7, max= 111, per=25.03%, avg=48.06, stdev=21.73, samples=253 iops : min= 1, max= 27, avg=11.33, stdev= 5.42, samples=253 lat (usec) : 50=0.52%, 100=1.66%, 250=0.13%, 500=0.03%, 1000=0.26% lat (msec) : 2=6.61%, 4=4.30%, 10=6.41%, 20=10.09%, 50=37.43% lat (msec) : 100=25.94%, 250=6.45%, 500=0.13%, 750=0.03% cpu : usr=0.06%, sys=4.43%, ctx=6324, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=184KiB/s (188kB/s), 45.9KiB/s-47.0KiB/s (47.0kB/s-48.1kB/s), io=23.4MiB (24.6MB), run=127476-130816msec WRITE: bw=192KiB/s (197kB/s), 47.9KiB/s-49.4KiB/s (49.0kB/s-50.6kB/s), io=24.6MiB (25.7MB), run=127476-130816msec rand-rw: (groupid=0, jobs=1): err= 0: pid=180033: Sat Sep 5 18:56:49 2026 read: IOPS=8, BW=32.2KiB/s (32.9kB/s)(5992KiB/186335msec) clat (msec): min=5, max=1276, avg=48.27, stdev=51.66 lat (msec): min=5, max=1276, avg=48.28, stdev=51.66 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 13], 10.00th=[ 15], 20.00th=[ 19], | 30.00th=[ 24], 40.00th=[ 28], 50.00th=[ 34], 60.00th=[ 41], | 70.00th=[ 52], 80.00th=[ 69], 90.00th=[ 103], 95.00th=[ 133], | 99.00th=[ 209], 99.50th=[ 228], 99.90th=[ 292], 99.95th=[ 1284], | 99.99th=[ 1284] bw ( KiB/s): min= 7, max= 120, per=25.76%, avg=32.97, stdev=20.82, samples=353 iops : min= 1, max= 30, avg= 7.57, stdev= 5.24, samples=353 write: IOPS=8, BW=33.8KiB/s (34.6kB/s)(6296KiB/186335msec); 0 zone resets clat (msec): min=13, max=434, avg=72.11, stdev=49.63 lat (msec): min=13, max=434, avg=72.12, stdev=49.63 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 24], 10.00th=[ 29], 20.00th=[ 35], | 30.00th=[ 42], 40.00th=[ 48], 50.00th=[ 58], 60.00th=[ 68], | 70.00th=[ 82], 80.00th=[ 103], 90.00th=[ 136], 95.00th=[ 171], | 99.00th=[ 241], 99.50th=[ 284], 99.90th=[ 430], 99.95th=[ 435], | 99.99th=[ 435] bw ( KiB/s): min= 7, max= 98, per=25.16%, avg=33.72, stdev=19.72, samples=362 iops : min= 1, max= 24, avg= 7.76, stdev= 4.98, samples=362 lat (msec) : 10=0.91%, 20=11.00%, 50=43.33%, 100=28.91%, 250=15.33% lat (msec) : 500=0.49%, 2000=0.03% cpu : usr=0.05%, sys=1.54%, ctx=4749, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180034: Sat Sep 5 18:56:49 2026 read: IOPS=8, BW=32.2KiB/s (33.0kB/s)(5940KiB/184254msec) clat (msec): min=5, max=1361, avg=47.49, stdev=53.43 lat (msec): min=5, max=1361, avg=47.49, stdev=53.43 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 13], 10.00th=[ 15], 20.00th=[ 19], | 30.00th=[ 23], 40.00th=[ 27], 50.00th=[ 33], 60.00th=[ 40], | 70.00th=[ 50], 80.00th=[ 69], 90.00th=[ 101], 95.00th=[ 128], | 99.00th=[ 211], 99.50th=[ 249], 99.90th=[ 342], 99.95th=[ 1368], | 99.99th=[ 1368] bw ( KiB/s): min= 7, max= 118, per=26.05%, avg=33.35, stdev=21.61, samples=346 iops : min= 1, max= 29, avg= 7.66, stdev= 5.43, samples=346 write: IOPS=8, BW=34.5KiB/s (35.3kB/s)(6348KiB/184254msec); 0 zone resets clat (msec): min=10, max=428, avg=71.36, stdev=49.49 lat (msec): min=10, max=428, avg=71.37, stdev=49.49 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 23], 10.00th=[ 28], 20.00th=[ 34], | 30.00th=[ 41], 40.00th=[ 49], 50.00th=[ 58], 60.00th=[ 68], | 70.00th=[ 81], 80.00th=[ 103], 90.00th=[ 138], 95.00th=[ 165], | 99.00th=[ 259], 99.50th=[ 288], 99.90th=[ 388], 99.95th=[ 430], | 99.99th=[ 430] bw ( KiB/s): min= 7, max= 120, per=25.64%, avg=34.35, stdev=19.38, samples=359 iops : min= 1, max= 30, avg= 7.92, stdev= 4.90, samples=359 lat (msec) : 10=0.85%, 20=11.98%, 50=42.97%, 100=28.55%, 250=14.88% lat (msec) : 500=0.75%, 2000=0.03% cpu : usr=0.05%, sys=1.52%, ctx=4619, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180035: Sat Sep 5 18:56:49 2026 read: IOPS=8, BW=32.6KiB/s (33.4kB/s)(6028KiB/185054msec) clat (msec): min=5, max=337, avg=47.85, stdev=41.40 lat (msec): min=5, max=337, avg=47.86, stdev=41.40 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 15], 20.00th=[ 19], | 30.00th=[ 23], 40.00th=[ 28], 50.00th=[ 34], 60.00th=[ 42], | 70.00th=[ 53], 80.00th=[ 70], 90.00th=[ 105], 95.00th=[ 133], | 99.00th=[ 197], 99.50th=[ 243], 99.90th=[ 334], 99.95th=[ 338], | 99.99th=[ 338] bw ( KiB/s): min= 7, max= 119, per=25.76%, avg=32.97, stdev=21.42, samples=354 iops : min= 1, max= 29, avg= 7.57, stdev= 5.39, samples=354 write: IOPS=8, BW=33.8KiB/s (34.6kB/s)(6260KiB/185054msec); 0 zone resets clat (msec): min=8, max=1398, avg=71.86, stdev=60.66 lat (msec): min=8, max=1398, avg=71.86, stdev=60.66 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 24], 10.00th=[ 28], 20.00th=[ 34], | 30.00th=[ 41], 40.00th=[ 47], 50.00th=[ 56], 60.00th=[ 67], | 70.00th=[ 82], 80.00th=[ 102], 90.00th=[ 133], 95.00th=[ 163], | 99.00th=[ 268], 99.50th=[ 313], 99.90th=[ 435], 99.95th=[ 1401], | 99.99th=[ 1401] bw ( KiB/s): min= 7, max= 127, per=25.44%, avg=34.08, stdev=20.32, samples=356 iops : min= 1, max= 31, avg= 7.85, stdev= 5.13, samples=356 lat (msec) : 10=1.20%, 20=11.20%, 50=43.65%, 100=28.13%, 250=14.97% lat (msec) : 500=0.81%, 2000=0.03% cpu : usr=0.05%, sys=1.58%, ctx=4743, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180036: Sat Sep 5 18:56:49 2026 read: IOPS=8, BW=32.8KiB/s (33.5kB/s)(6052KiB/184793msec) clat (msec): min=6, max=327, avg=47.79, stdev=43.95 lat (msec): min=6, max=327, avg=47.79, stdev=43.95 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 15], 20.00th=[ 19], | 30.00th=[ 23], 40.00th=[ 27], 50.00th=[ 32], 60.00th=[ 40], | 70.00th=[ 51], 80.00th=[ 70], 90.00th=[ 106], 95.00th=[ 138], | 99.00th=[ 224], 99.50th=[ 262], 99.90th=[ 321], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 7, max= 110, per=26.14%, avg=33.46, stdev=21.92, samples=351 iops : min= 1, max= 27, avg= 7.70, stdev= 5.54, samples=351 write: IOPS=8, BW=33.7KiB/s (34.6kB/s)(6236KiB/184793msec); 0 zone resets clat (msec): min=12, max=1422, avg=71.84, stdev=59.35 lat (msec): min=12, max=1422, avg=71.85, stdev=59.35 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 24], 10.00th=[ 28], 20.00th=[ 35], | 30.00th=[ 41], 40.00th=[ 48], 50.00th=[ 57], 60.00th=[ 68], | 70.00th=[ 81], 80.00th=[ 100], 90.00th=[ 133], 95.00th=[ 169], | 99.00th=[ 257], 99.50th=[ 284], 99.90th=[ 384], 99.95th=[ 1418], | 99.99th=[ 1418] bw ( KiB/s): min= 7, max= 112, per=25.16%, avg=33.72, stdev=19.73, samples=359 iops : min= 1, max= 28, avg= 7.76, stdev= 4.98, samples=359 lat (msec) : 10=1.46%, 20=11.98%, 50=42.61%, 100=28.61%, 250=14.39% lat (msec) : 500=0.91%, 2000=0.03% cpu : usr=0.06%, sys=1.54%, ctx=4855, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=129KiB/s (132kB/s), 32.2KiB/s-32.8KiB/s (32.9kB/s-33.5kB/s), io=23.4MiB (24.6MB), run=184254-186335msec WRITE: bw=135KiB/s (138kB/s), 33.7KiB/s-34.5KiB/s (34.6kB/s-35.3kB/s), io=24.6MiB (25.7MB), run=184254-186335msec mix direct rw 16384 by fio with 4 jobs... mix buffer rw 16384 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 16.0KiB-16.0KiB, (W) 16.0KiB-16.0KiB, (T) 16.0KiB-16.0KiB, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 16.0KiB-16.0KiB, (W) 16.0KiB-16.0KiB, (T) 16.0KiB-16.0KiB, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=180085: Sat Sep 5 18:57:35 2026 read: IOPS=11, BW=177KiB/s (182kB/s)(5920KiB/33378msec) clat (usec): min=41, max=271561, avg=48673.93, stdev=35191.26 lat (usec): min=41, max=271562, avg=48676.00, stdev=35190.66 clat percentiles (usec): | 1.00th=[ 58], 5.00th=[ 72], 10.00th=[ 685], 20.00th=[ 23725], | 30.00th=[ 30802], 40.00th=[ 37487], 50.00th=[ 43254], 60.00th=[ 50594], | 70.00th=[ 57410], 80.00th=[ 68682], 90.00th=[ 87557], 95.00th=[122160], | 99.00th=[160433], 99.50th=[219153], 99.90th=[270533], 99.95th=[270533], | 99.99th=[270533] bw ( KiB/s): min= 31, max= 414, per=26.82%, avg=177.54, stdev=78.79, samples=65 iops : min= 1, max= 25, avg=10.34, stdev= 4.99, samples=65 write: IOPS=11, BW=191KiB/s (195kB/s)(6368KiB/33378msec); 0 zone resets clat (usec): min=1515, max=235279, avg=37995.77, stdev=40263.20 lat (usec): min=1516, max=235282, avg=37999.92, stdev=40265.05 clat percentiles (usec): | 1.00th=[ 1680], 5.00th=[ 2073], 10.00th=[ 3851], 20.00th=[ 6194], | 30.00th=[ 9110], 40.00th=[ 15008], 50.00th=[ 25035], 60.00th=[ 34866], | 70.00th=[ 45876], 80.00th=[ 67634], 90.00th=[ 90702], 95.00th=[111674], | 99.00th=[189793], 99.50th=[231736], 99.90th=[235930], 99.95th=[235930], | 99.99th=[235930] bw ( KiB/s): min= 31, max= 383, per=27.42%, avg=191.12, stdev=76.44, samples=65 iops : min= 1, max= 23, avg=11.20, stdev= 4.78, samples=65 lat (usec) : 50=0.13%, 100=3.39%, 250=0.39%, 500=0.65%, 750=0.26% lat (msec) : 2=2.21%, 4=3.52%, 10=10.81%, 20=9.38%, 50=35.03% lat (msec) : 100=27.08%, 250=7.03%, 500=0.13% cpu : usr=0.06%, sys=5.27%, ctx=1766, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180086: Sat Sep 5 18:57:35 2026 read: IOPS=10, BW=168KiB/s (172kB/s)(5744KiB/34253msec) clat (usec): min=43, max=173654, avg=52662.83, stdev=32825.35 lat (usec): min=43, max=173654, avg=52666.17, stdev=32825.60 clat percentiles (usec): | 1.00th=[ 56], 5.00th=[ 91], 10.00th=[ 18220], 20.00th=[ 25297], | 30.00th=[ 31851], 40.00th=[ 40109], 50.00th=[ 46924], 60.00th=[ 56361], | 70.00th=[ 65799], 80.00th=[ 80217], 90.00th=[ 98042], 95.00th=[110625], | 99.00th=[158335], 99.50th=[164627], 99.90th=[173016], 99.95th=[173016], | 99.99th=[173016] bw ( KiB/s): min= 31, max= 372, per=25.46%, avg=168.58, stdev=68.59, samples=66 iops : min= 1, max= 23, avg= 9.76, stdev= 4.36, samples=66 write: IOPS=11, BW=191KiB/s (196kB/s)(6544KiB/34253msec); 0 zone resets clat (usec): min=1436, max=175777, avg=37066.70, stdev=35770.11 lat (usec): min=1438, max=175780, avg=37069.27, stdev=35770.21 clat percentiles (usec): | 1.00th=[ 1647], 5.00th=[ 2343], 10.00th=[ 3949], 20.00th=[ 6849], | 30.00th=[ 10814], 40.00th=[ 17695], 50.00th=[ 27395], 60.00th=[ 35914], | 70.00th=[ 45876], 80.00th=[ 64226], 90.00th=[ 89654], 95.00th=[111674], | 99.00th=[154141], 99.50th=[164627], 99.90th=[175113], 99.95th=[175113], | 99.99th=[175113] bw ( KiB/s): min= 31, max= 465, per=27.21%, avg=189.69, stdev=88.71, samples=67 iops : min= 1, max= 29, avg=11.07, stdev= 5.62, samples=67 lat (usec) : 50=0.13%, 100=2.34%, 250=0.26% lat (msec) : 2=2.34%, 4=3.39%, 10=9.51%, 20=11.07%, 50=34.90% lat (msec) : 100=27.60%, 250=8.46% cpu : usr=0.05%, sys=5.60%, ctx=1814, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180087: Sat Sep 5 18:57:35 2026 read: IOPS=10, BW=173KiB/s (177kB/s)(6256KiB/36148msec) clat (usec): min=48, max=278673, avg=50632.47, stdev=36342.69 lat (usec): min=49, max=278674, avg=50633.82, stdev=36342.77 clat percentiles (usec): | 1.00th=[ 54], 5.00th=[ 78], 10.00th=[ 14877], 20.00th=[ 25560], | 30.00th=[ 32113], 40.00th=[ 37487], 50.00th=[ 43254], 60.00th=[ 49021], | 70.00th=[ 60031], 80.00th=[ 74974], 90.00th=[ 96994], 95.00th=[116917], | 99.00th=[177210], 99.50th=[212861], 99.90th=[278922], 99.95th=[278922], | 99.99th=[278922] bw ( KiB/s): min= 62, max= 366, per=26.09%, avg=172.70, stdev=71.04, samples=71 iops : min= 3, max= 22, avg=10.00, stdev= 4.49, samples=71 write: IOPS=10, BW=167KiB/s (171kB/s)(6032KiB/36148msec); 0 zone resets clat (usec): min=1385, max=210753, avg=43124.61, stdev=42461.22 lat (usec): min=1387, max=210755, avg=43162.39, stdev=42435.38 clat percentiles (usec): | 1.00th=[ 1614], 5.00th=[ 2409], 10.00th=[ 4228], 20.00th=[ 7177], | 30.00th=[ 13304], 40.00th=[ 21627], 50.00th=[ 30278], 60.00th=[ 41157], | 70.00th=[ 52167], 80.00th=[ 69731], 90.00th=[105382], 95.00th=[137364], | 99.00th=[183501], 99.50th=[206570], 99.90th=[210764], 99.95th=[210764], | 99.99th=[210764] bw ( KiB/s): min= 63, max= 434, per=24.27%, avg=169.13, stdev=80.64, samples=69 iops : min= 3, max= 27, avg= 9.78, stdev= 5.12, samples=69 lat (usec) : 50=0.13%, 100=3.39%, 250=0.78%, 500=0.39% lat (msec) : 2=1.82%, 4=2.47%, 10=8.20%, 20=8.98%, 50=38.80% lat (msec) : 100=24.22%, 250=10.68%, 500=0.13% cpu : usr=0.05%, sys=5.28%, ctx=1851, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180088: Sat Sep 5 18:57:35 2026 read: IOPS=11, BW=188KiB/s (193kB/s)(6032KiB/32060msec) clat (usec): min=37, max=195123, avg=47248.10, stdev=33734.25 lat (usec): min=37, max=195125, avg=47249.83, stdev=33734.61 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 63], 10.00th=[ 93], 20.00th=[ 22938], | 30.00th=[ 29230], 40.00th=[ 35390], 50.00th=[ 42730], 60.00th=[ 50594], | 70.00th=[ 56886], 80.00th=[ 70779], 90.00th=[ 87557], 95.00th=[113771], | 99.00th=[158335], 99.50th=[175113], 99.90th=[196084], 99.95th=[196084], | 99.99th=[196084] bw ( KiB/s): min= 31, max= 350, per=28.09%, avg=185.97, stdev=68.80, samples=62 iops : min= 1, max= 21, avg=10.87, stdev= 4.31, samples=62 write: IOPS=12, BW=195KiB/s (200kB/s)(6256KiB/32060msec); 0 zone resets clat (usec): min=1685, max=263064, avg=35900.83, stdev=38244.86 lat (usec): min=1687, max=263065, avg=35906.38, stdev=38243.59 clat percentiles (usec): | 1.00th=[ 1762], 5.00th=[ 2089], 10.00th=[ 3097], 20.00th=[ 5735], | 30.00th=[ 9110], 40.00th=[ 15401], 50.00th=[ 23462], 60.00th=[ 31851], | 70.00th=[ 43254], 80.00th=[ 60556], 90.00th=[ 92799], 95.00th=[115868], | 99.00th=[164627], 99.50th=[183501], 99.90th=[263193], 99.95th=[263193], | 99.99th=[263193] bw ( KiB/s): min= 30, max= 422, per=27.75%, avg=193.39, stdev=95.64, samples=62 iops : min= 1, max= 26, avg=11.35, stdev= 6.01, samples=62 lat (usec) : 50=0.26%, 100=4.82%, 250=0.78%, 1000=0.13% lat (msec) : 2=1.95%, 4=4.82%, 10=9.38%, 20=9.24%, 50=36.20% lat (msec) : 100=25.13%, 250=7.16%, 500=0.13% cpu : usr=0.05%, sys=5.60%, ctx=1730, majf=0, minf=18 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=663KiB/s (679kB/s), 168KiB/s-188KiB/s (172kB/s-193kB/s), io=23.4MiB (24.5MB), run=32060-36148msec WRITE: bw=697KiB/s (714kB/s), 167KiB/s-195KiB/s (171kB/s-200kB/s), io=24.6MiB (25.8MB), run=32060-36148msec rand-rw: (groupid=0, jobs=1): err= 0: pid=180090: Sat Sep 5 18:57:54 2026 read: IOPS=6, BW=111KiB/s (114kB/s)(5920KiB/53149msec) clat (msec): min=9, max=333, avg=60.34, stdev=44.91 lat (msec): min=9, max=333, avg=60.35, stdev=44.90 clat percentiles (msec): | 1.00th=[ 13], 5.00th=[ 18], 10.00th=[ 23], 20.00th=[ 28], | 30.00th=[ 34], 40.00th=[ 39], 50.00th=[ 48], 60.00th=[ 57], | 70.00th=[ 65], 80.00th=[ 87], 90.00th=[ 115], 95.00th=[ 142], | 99.00th=[ 245], 99.50th=[ 279], 99.90th=[ 334], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 31, max= 311, per=25.61%, avg=114.49, stdev=62.11, samples=102 iops : min= 1, max= 19, avg= 6.35, stdev= 3.91, samples=102 write: IOPS=7, BW=120KiB/s (123kB/s)(6368KiB/53149msec); 0 zone resets clat (msec): min=16, max=441, avg=77.27, stdev=49.62 lat (msec): min=16, max=441, avg=77.28, stdev=49.62 clat percentiles (msec): | 1.00th=[ 22], 5.00th=[ 29], 10.00th=[ 33], 20.00th=[ 41], | 30.00th=[ 48], 40.00th=[ 53], 50.00th=[ 62], 60.00th=[ 72], | 70.00th=[ 90], 80.00th=[ 110], 90.00th=[ 140], 95.00th=[ 184], | 99.00th=[ 253], 99.50th=[ 292], 99.90th=[ 443], 99.95th=[ 443], | 99.99th=[ 443] bw ( KiB/s): min= 31, max= 317, per=25.39%, avg=119.33, stdev=58.96, samples=105 iops : min= 1, max= 19, avg= 6.66, stdev= 3.71, samples=105 lat (msec) : 10=0.26%, 20=3.39%, 50=39.45%, 100=37.11%, 250=18.88% lat (msec) : 500=0.91% cpu : usr=0.05%, sys=1.78%, ctx=1225, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180091: Sat Sep 5 18:57:54 2026 read: IOPS=6, BW=108KiB/s (110kB/s)(5744KiB/53268msec) clat (msec): min=7, max=289, avg=59.88, stdev=42.14 lat (msec): min=7, max=289, avg=59.88, stdev=42.14 clat percentiles (msec): | 1.00th=[ 13], 5.00th=[ 19], 10.00th=[ 22], 20.00th=[ 28], | 30.00th=[ 36], 40.00th=[ 42], 50.00th=[ 50], 60.00th=[ 57], | 70.00th=[ 67], 80.00th=[ 83], 90.00th=[ 115], 95.00th=[ 146], | 99.00th=[ 207], 99.50th=[ 279], 99.90th=[ 292], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 21, max= 285, per=25.02%, avg=111.83, stdev=62.24, samples=100 iops : min= 1, max= 17, avg= 6.18, stdev= 3.92, samples=100 write: IOPS=7, BW=123KiB/s (126kB/s)(6544KiB/53268msec); 0 zone resets clat (msec): min=22, max=446, avg=77.56, stdev=46.80 lat (msec): min=22, max=446, avg=77.57, stdev=46.80 clat percentiles (msec): | 1.00th=[ 24], 5.00th=[ 30], 10.00th=[ 35], 20.00th=[ 43], | 30.00th=[ 50], 40.00th=[ 58], 50.00th=[ 67], 60.00th=[ 78], | 70.00th=[ 90], 80.00th=[ 108], 90.00th=[ 127], 95.00th=[ 167], | 99.00th=[ 226], 99.50th=[ 279], 99.90th=[ 447], 99.95th=[ 447], | 99.99th=[ 447] bw ( KiB/s): min= 31, max= 285, per=26.32%, avg=123.72, stdev=54.63, samples=103 iops : min= 1, max= 17, avg= 6.92, stdev= 3.46, samples=103 lat (msec) : 10=0.13%, 20=3.78%, 50=36.46%, 100=41.93%, 250=16.93% lat (msec) : 500=0.78% cpu : usr=0.05%, sys=1.59%, ctx=1221, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180092: Sat Sep 5 18:57:54 2026 read: IOPS=7, BW=117KiB/s (120kB/s)(6256KiB/53512msec) clat (msec): min=9, max=282, avg=60.15, stdev=43.92 lat (msec): min=9, max=282, avg=60.15, stdev=43.92 clat percentiles (msec): | 1.00th=[ 12], 5.00th=[ 18], 10.00th=[ 22], 20.00th=[ 28], | 30.00th=[ 34], 40.00th=[ 43], 50.00th=[ 50], 60.00th=[ 57], | 70.00th=[ 66], 80.00th=[ 83], 90.00th=[ 111], 95.00th=[ 157], | 99.00th=[ 243], 99.50th=[ 275], 99.90th=[ 284], 99.95th=[ 284], | 99.99th=[ 284] bw ( KiB/s): min= 31, max= 254, per=26.67%, avg=119.21, stdev=61.31, samples=103 iops : min= 1, max= 15, avg= 6.65, stdev= 3.87, samples=103 write: IOPS=7, BW=113KiB/s (115kB/s)(6032KiB/53512msec); 0 zone resets clat (msec): min=12, max=426, avg=79.41, stdev=51.04 lat (msec): min=12, max=426, avg=79.41, stdev=51.04 clat percentiles (msec): | 1.00th=[ 23], 5.00th=[ 34], 10.00th=[ 36], 20.00th=[ 42], | 30.00th=[ 48], 40.00th=[ 56], 50.00th=[ 64], 60.00th=[ 75], | 70.00th=[ 91], 80.00th=[ 110], 90.00th=[ 142], 95.00th=[ 178], | 99.00th=[ 279], 99.50th=[ 347], 99.90th=[ 426], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 31, max= 286, per=24.00%, avg=112.78, stdev=49.53, samples=103 iops : min= 1, max= 17, avg= 6.24, stdev= 3.10, samples=103 lat (msec) : 10=0.13%, 20=4.04%, 50=37.24%, 100=39.58%, 250=17.71% lat (msec) : 500=1.30% cpu : usr=0.06%, sys=1.76%, ctx=1247, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180093: Sat Sep 5 18:57:54 2026 read: IOPS=7, BW=113KiB/s (116kB/s)(6032KiB/53428msec) clat (msec): min=9, max=333, avg=60.07, stdev=45.37 lat (msec): min=9, max=333, avg=60.07, stdev=45.37 clat percentiles (msec): | 1.00th=[ 13], 5.00th=[ 19], 10.00th=[ 22], 20.00th=[ 28], | 30.00th=[ 35], 40.00th=[ 41], 50.00th=[ 50], 60.00th=[ 57], | 70.00th=[ 69], 80.00th=[ 80], 90.00th=[ 107], 95.00th=[ 146], | 99.00th=[ 264], 99.50th=[ 317], 99.90th=[ 334], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 31, max= 317, per=25.92%, avg=115.88, stdev=63.26, samples=101 iops : min= 1, max= 19, avg= 6.45, stdev= 3.97, samples=101 write: IOPS=7, BW=117KiB/s (120kB/s)(6256KiB/53428msec); 0 zone resets clat (msec): min=19, max=381, avg=78.52, stdev=49.62 lat (msec): min=19, max=381, avg=78.52, stdev=49.62 clat percentiles (msec): | 1.00th=[ 25], 5.00th=[ 32], 10.00th=[ 36], 20.00th=[ 43], | 30.00th=[ 50], 40.00th=[ 56], 50.00th=[ 64], 60.00th=[ 70], | 70.00th=[ 89], 80.00th=[ 106], 90.00th=[ 148], 95.00th=[ 180], | 99.00th=[ 275], 99.50th=[ 296], 99.90th=[ 380], 99.95th=[ 380], | 99.99th=[ 380] bw ( KiB/s): min= 31, max= 286, per=24.99%, avg=117.43, stdev=53.51, samples=104 iops : min= 1, max= 17, avg= 6.54, stdev= 3.37, samples=104 lat (msec) : 10=0.26%, 20=3.65%, 50=37.24%, 100=41.54%, 250=16.02% lat (msec) : 500=1.30% cpu : usr=0.06%, sys=1.57%, ctx=1220, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=448KiB/s (458kB/s), 108KiB/s-117KiB/s (110kB/s-120kB/s), io=23.4MiB (24.5MB), run=53149-53512msec WRITE: bw=471KiB/s (482kB/s), 113KiB/s-123KiB/s (115kB/s-126kB/s), io=24.6MiB (25.8MB), run=53149-53512msec mix direct rw 1048576 by fio with 4 jobs... mix buffer rw 1048576 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 1024KiB-1024KiB, (W) 1024KiB-1024KiB, (T) 1024KiB-1024KiB, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 1024KiB-1024KiB, (W) 1024KiB-1024KiB, (T) 1024KiB-1024KiB, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=180112: Sat Sep 5 18:58:10 2026 read: IOPS=1, BW=1553KiB/s (1590kB/s)(7168KiB/4616msec) clat (usec): min=543, max=1829.8k, avg=363727.97, stdev=658130.73 lat (usec): min=544, max=1829.8k, avg=363729.15, stdev=658130.68 clat percentiles (usec): | 1.00th=[ 545], 5.00th=[ 545], 10.00th=[ 545], | 20.00th=[ 676], 30.00th=[ 1827], 40.00th=[ 1827], | 50.00th=[ 189793], 60.00th=[ 217056], 70.00th=[ 217056], | 80.00th=[ 304088], 90.00th=[1837106], 95.00th=[1837106], | 99.00th=[1837106], 99.50th=[1837106], 99.90th=[1837106], | 99.95th=[1837106], 99.99th=[1837106] bw ( KiB/s): min= 1738, max= 4031, per=61.84%, avg=2452.75, stdev=1060.62, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1109KiB/s (1136kB/s)(5120KiB/4616msec); 0 zone resets clat (msec): min=117, max=639, avg=411.81, stdev=232.84 lat (msec): min=117, max=639, avg=413.09, stdev=234.15 clat percentiles (msec): | 1.00th=[ 118], 5.00th=[ 118], 10.00th=[ 118], 20.00th=[ 118], | 30.00th=[ 220], 40.00th=[ 220], 50.00th=[ 477], 60.00th=[ 477], | 70.00th=[ 609], 80.00th=[ 609], 90.00th=[ 642], 95.00th=[ 642], | 99.00th=[ 642], 99.50th=[ 642], 99.90th=[ 642], 99.95th=[ 642], | 99.99th=[ 642] bw ( KiB/s): min= 1980, max= 2007, per=35.90%, avg=1993.50, stdev=19.09, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (usec) : 750=16.67% lat (msec) : 2=8.33%, 250=33.33%, 500=16.67%, 750=16.67%, 2000=8.33% cpu : usr=0.00%, sys=10.49%, ctx=471, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180113: Sat Sep 5 18:58:10 2026 read: IOPS=0, BW=400KiB/s (410kB/s)(2048KiB/5115msec) clat (msec): min=198, max=349, avg=273.97, stdev=106.42 lat (msec): min=198, max=349, avg=273.97, stdev=106.42 clat percentiles (msec): | 1.00th=[ 199], 5.00th=[ 199], 10.00th=[ 199], 20.00th=[ 199], | 30.00th=[ 199], 40.00th=[ 199], 50.00th=[ 199], 60.00th=[ 351], | 70.00th=[ 351], 80.00th=[ 351], 90.00th=[ 351], 95.00th=[ 351], | 99.00th=[ 351], 99.50th=[ 351], 99.90th=[ 351], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 1861, max= 2015, per=48.87%, avg=1938.00, stdev=108.89, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=2002KiB/s (2050kB/s)(10.0MiB/5115msec); 0 zone resets clat (msec): min=105, max=1778, avg=456.43, stdev=490.39 lat (msec): min=105, max=1778, avg=456.52, stdev=490.39 clat percentiles (msec): | 1.00th=[ 106], 5.00th=[ 106], 10.00th=[ 106], 20.00th=[ 136], | 30.00th=[ 165], 40.00th=[ 271], 50.00th=[ 317], 60.00th=[ 334], | 70.00th=[ 405], 80.00th=[ 426], 90.00th=[ 634], 95.00th=[ 1787], | 99.00th=[ 1787], 99.50th=[ 1787], 99.90th=[ 1787], 99.95th=[ 1787], | 99.99th=[ 1787] bw ( KiB/s): min= 1861, max= 6095, per=57.60%, avg=3198.60, stdev=1848.35, samples=5 iops : min= 1, max= 5, avg= 2.20, stdev= 1.79, samples=5 lat (msec) : 250=33.33%, 500=50.00%, 750=8.33%, 2000=8.33% cpu : usr=0.00%, sys=10.77%, ctx=104, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180114: Sat Sep 5 18:58:10 2026 read: IOPS=1, BW=1190KiB/s (1219kB/s)(6144KiB/5163msec) clat (usec): min=1258, max=305604, avg=185244.74, stdev=108950.14 lat (usec): min=1260, max=305605, avg=185245.82, stdev=108950.14 clat percentiles (usec): | 1.00th=[ 1254], 5.00th=[ 1254], 10.00th=[ 1254], 20.00th=[123208], | 30.00th=[123208], 40.00th=[208667], 50.00th=[208667], 60.00th=[210764], | 70.00th=[263193], 80.00th=[263193], 90.00th=[304088], 95.00th=[304088], | 99.00th=[304088], 99.50th=[304088], 99.90th=[304088], 99.95th=[304088], | 99.99th=[304088] bw ( KiB/s): min= 1980, max= 4015, per=63.14%, avg=2504.25, stdev=1007.28, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1190KiB/s (1219kB/s)(6144KiB/5163msec); 0 zone resets clat (msec): min=169, max=1859, avg=670.70, stdev=622.72 lat (msec): min=169, max=1859, avg=670.80, stdev=622.71 clat percentiles (msec): | 1.00th=[ 169], 5.00th=[ 169], 10.00th=[ 169], 20.00th=[ 197], | 30.00th=[ 197], 40.00th=[ 523], 50.00th=[ 523], 60.00th=[ 531], | 70.00th=[ 751], 80.00th=[ 751], 90.00th=[ 1854], 95.00th=[ 1854], | 99.00th=[ 1854], 99.50th=[ 1854], 99.90th=[ 1854], 99.95th=[ 1854], | 99.99th=[ 1854] bw ( KiB/s): min= 1868, max= 4015, per=42.84%, avg=2378.80, stdev=916.73, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (msec) : 2=8.33%, 250=41.67%, 500=16.67%, 750=25.00%, 2000=8.33% cpu : usr=0.06%, sys=8.66%, ctx=190, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180115: Sat Sep 5 18:58:10 2026 read: IOPS=1, BW=1114KiB/s (1141kB/s)(5120KiB/4596msec) clat (usec): min=325, max=182247, avg=51279.55, stdev=79647.34 lat (usec): min=325, max=182248, avg=51280.50, stdev=79647.42 clat percentiles (usec): | 1.00th=[ 326], 5.00th=[ 326], 10.00th=[ 326], 20.00th=[ 326], | 30.00th=[ 326], 40.00th=[ 326], 50.00th=[ 644], 60.00th=[ 644], | 70.00th=[ 72877], 80.00th=[ 72877], 90.00th=[181404], 95.00th=[181404], | 99.00th=[181404], 99.50th=[181404], 99.90th=[181404], 99.95th=[181404], | 99.99th=[181404] bw ( KiB/s): min= 2015, max= 6023, per=100.00%, avg=4019.00, stdev=2834.08, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=1, BW=1560KiB/s (1597kB/s)(7168KiB/4596msec); 0 zone resets clat (msec): min=166, max=1878, avg=618.48, stdev=593.86 lat (msec): min=166, max=1879, avg=618.71, stdev=594.25 clat percentiles (msec): | 1.00th=[ 167], 5.00th=[ 167], 10.00th=[ 167], 20.00th=[ 176], | 30.00th=[ 330], 40.00th=[ 330], 50.00th=[ 468], 60.00th=[ 567], | 70.00th=[ 567], 80.00th=[ 751], 90.00th=[ 1871], 95.00th=[ 1871], | 99.00th=[ 1871], 99.50th=[ 1871], 99.90th=[ 1871], 99.95th=[ 1871], | 99.99th=[ 1871] bw ( KiB/s): min= 2003, max= 4031, per=54.29%, avg=3015.00, stdev=1163.96, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 lat (usec) : 500=16.67%, 750=8.33% lat (msec) : 100=8.33%, 250=25.00%, 500=16.67%, 750=16.67%, 2000=8.33% cpu : usr=0.04%, sys=9.62%, ctx=109, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=3967KiB/s (4062kB/s), 400KiB/s-1553KiB/s (410kB/s-1590kB/s), io=20.0MiB (20.0MB), run=4596-5163msec WRITE: bw=5553KiB/s (5687kB/s), 1109KiB/s-2002KiB/s (1136kB/s-2050kB/s), io=28.0MiB (29.4MB), run=4596-5163msec rand-rw: (groupid=0, jobs=1): err= 0: pid=180107: Sat Sep 5 18:58:11 2026 read: IOPS=1, BW=1571KiB/s (1609kB/s)(7168KiB/4562msec) clat (msec): min=105, max=1820, avg=388.05, stdev=634.23 lat (msec): min=105, max=1820, avg=388.05, stdev=634.23 clat percentiles (msec): | 1.00th=[ 106], 5.00th=[ 106], 10.00th=[ 106], 20.00th=[ 108], | 30.00th=[ 113], 40.00th=[ 113], 50.00th=[ 124], 60.00th=[ 192], | 70.00th=[ 192], 80.00th=[ 255], 90.00th=[ 1821], 95.00th=[ 1821], | 99.00th=[ 1821], 99.50th=[ 1821], 99.90th=[ 1821], 99.95th=[ 1821], | 99.99th=[ 1821] bw ( KiB/s): min= 2019, max= 6131, per=97.77%, avg=3397.67, stdev=2367.17, samples=3 iops : min= 1, max= 5, avg= 2.33, stdev= 2.31, samples=3 write: IOPS=1, BW=1122KiB/s (1149kB/s)(5120KiB/4562msec); 0 zone resets clat (msec): min=191, max=804, avg=363.84, stdev=249.66 lat (msec): min=191, max=804, avg=363.92, stdev=249.66 clat percentiles (msec): | 1.00th=[ 192], 5.00th=[ 192], 10.00th=[ 192], 20.00th=[ 192], | 30.00th=[ 249], 40.00th=[ 249], 50.00th=[ 268], 60.00th=[ 268], | 70.00th=[ 309], 80.00th=[ 309], 90.00th=[ 802], 95.00th=[ 802], | 99.00th=[ 802], 99.50th=[ 802], 99.90th=[ 802], 99.95th=[ 802], | 99.99th=[ 802] bw ( KiB/s): min= 1980, max= 4063, per=55.24%, avg=2687.33, stdev=1191.52, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (msec) : 250=58.33%, 500=25.00%, 1000=8.33%, 2000=8.33% cpu : usr=0.00%, sys=2.65%, ctx=56, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180108: Sat Sep 5 18:58:11 2026 read: IOPS=0, BW=354KiB/s (363kB/s)(2048KiB/5784msec) clat (msec): min=138, max=661, avg=400.29, stdev=370.05 lat (msec): min=138, max=661, avg=400.29, stdev=370.05 clat percentiles (msec): | 1.00th=[ 140], 5.00th=[ 140], 10.00th=[ 140], 20.00th=[ 140], | 30.00th=[ 140], 40.00th=[ 140], 50.00th=[ 140], 60.00th=[ 659], | 70.00th=[ 659], 80.00th=[ 659], 90.00th=[ 659], 95.00th=[ 659], | 99.00th=[ 659], 99.50th=[ 659], 99.90th=[ 659], 99.95th=[ 659], | 99.99th=[ 659] bw ( KiB/s): min= 1370, max= 2039, per=49.05%, avg=1704.50, stdev=473.05, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1770KiB/s (1813kB/s)(10.0MiB/5784msec); 0 zone resets clat (msec): min=68, max=1799, avg=488.41, stdev=515.54 lat (msec): min=68, max=1799, avg=488.51, stdev=515.53 clat percentiles (msec): | 1.00th=[ 69], 5.00th=[ 69], 10.00th=[ 69], 20.00th=[ 73], | 30.00th=[ 153], 40.00th=[ 209], 50.00th=[ 321], 60.00th=[ 363], | 70.00th=[ 558], 80.00th=[ 584], 90.00th=[ 768], 95.00th=[ 1804], | 99.00th=[ 1804], 99.50th=[ 1804], 99.90th=[ 1804], 99.95th=[ 1804], | 99.99th=[ 1804] bw ( KiB/s): min= 1370, max= 6071, per=55.33%, avg=2692.00, stdev=1909.09, samples=5 iops : min= 1, max= 5, avg= 1.80, stdev= 1.79, samples=5 lat (msec) : 100=16.67%, 250=25.00%, 500=16.67%, 750=25.00%, 1000=8.33% lat (msec) : 2000=8.33% cpu : usr=0.05%, sys=3.94%, ctx=99, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180109: Sat Sep 5 18:58:11 2026 read: IOPS=1, BW=1130KiB/s (1157kB/s)(6144KiB/5438msec) clat (msec): min=136, max=434, avg=275.68, stdev=127.31 lat (msec): min=136, max=434, avg=275.68, stdev=127.31 clat percentiles (msec): | 1.00th=[ 136], 5.00th=[ 136], 10.00th=[ 136], 20.00th=[ 178], | 30.00th=[ 178], 40.00th=[ 205], 50.00th=[ 205], 60.00th=[ 279], | 70.00th=[ 422], 80.00th=[ 422], 90.00th=[ 435], 95.00th=[ 435], | 99.00th=[ 435], 99.50th=[ 435], 99.90th=[ 435], 99.95th=[ 435], | 99.99th=[ 435] bw ( KiB/s): min= 1980, max= 4063, per=72.67%, avg=2525.25, stdev=1025.46, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1130KiB/s (1157kB/s)(6144KiB/5438msec); 0 zone resets clat (msec): min=106, max=2251, avg=610.17, stdev=832.25 lat (msec): min=106, max=2251, avg=610.53, stdev=832.07 clat percentiles (msec): | 1.00th=[ 107], 5.00th=[ 107], 10.00th=[ 107], 20.00th=[ 140], | 30.00th=[ 140], 40.00th=[ 153], 50.00th=[ 153], 60.00th=[ 330], | 70.00th=[ 684], 80.00th=[ 684], 90.00th=[ 2265], 95.00th=[ 2265], | 99.00th=[ 2265], 99.50th=[ 2265], 99.90th=[ 2265], 99.95th=[ 2265], | 99.99th=[ 2265] bw ( KiB/s): min= 2019, max= 3930, per=49.49%, avg=2407.60, stdev=851.09, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (msec) : 250=50.00%, 500=33.33%, 750=8.33%, >=2000=8.33% cpu : usr=0.00%, sys=4.16%, ctx=84, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180110: Sat Sep 5 18:58:11 2026 read: IOPS=0, BW=869KiB/s (890kB/s)(5120KiB/5893msec) clat (msec): min=102, max=738, avg=364.46, stdev=249.50 lat (msec): min=102, max=738, avg=364.46, stdev=249.50 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 103], 10.00th=[ 103], 20.00th=[ 103], | 30.00th=[ 207], 40.00th=[ 207], 50.00th=[ 305], 60.00th=[ 305], | 70.00th=[ 472], 80.00th=[ 472], 90.00th=[ 743], 95.00th=[ 743], | 99.00th=[ 743], 99.50th=[ 743], 99.90th=[ 743], 99.95th=[ 743], | 99.99th=[ 743] bw ( KiB/s): min= 2031, max= 4039, per=77.78%, avg=2703.00, stdev=1157.02, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=1, BW=1216KiB/s (1246kB/s)(7168KiB/5893msec); 0 zone resets clat (msec): min=103, max=2146, avg=565.25, stdev=722.21 lat (msec): min=104, max=2147, avg=565.47, stdev=722.12 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 104], 10.00th=[ 104], 20.00th=[ 167], | 30.00th=[ 226], 40.00th=[ 226], 50.00th=[ 300], 60.00th=[ 330], | 70.00th=[ 330], 80.00th=[ 684], 90.00th=[ 2140], 95.00th=[ 2140], | 99.00th=[ 2140], 99.50th=[ 2140], 99.90th=[ 2140], 99.95th=[ 2140], | 99.99th=[ 2140] bw ( KiB/s): min= 1980, max= 2043, per=41.49%, avg=2018.40, stdev=24.33, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (msec) : 250=41.67%, 500=33.33%, 750=16.67%, >=2000=8.33% cpu : usr=0.00%, sys=3.70%, ctx=80, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=3475KiB/s (3559kB/s), 354KiB/s-1571KiB/s (363kB/s-1609kB/s), io=20.0MiB (20.0MB), run=4562-5893msec WRITE: bw=4865KiB/s (4982kB/s), 1122KiB/s-1770KiB/s (1149kB/s-1813kB/s), io=28.0MiB (29.4MB), run=4562-5893msec mix direct rw 4194304 by fio with 4 jobs... mix buffer rw 4194304 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 4096KiB-4096KiB, (W) 4096KiB-4096KiB, (T) 4096KiB-4096KiB, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 4096KiB-4096KiB, (W) 4096KiB-4096KiB, (T) 4096KiB-4096KiB, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=180122: Sat Sep 5 18:58:24 2026 read: IOPS=1, BW=6907KiB/s (7073kB/s)(12.0MiB/1779msec) clat (msec): min=485, max=681, avg=562.71, stdev=104.18 lat (msec): min=485, max=681, avg=563.18, stdev=103.90 clat percentiles (msec): | 1.00th=[ 485], 5.00th=[ 485], 10.00th=[ 485], 20.00th=[ 485], | 30.00th=[ 485], 40.00th=[ 523], 50.00th=[ 523], 60.00th=[ 523], | 70.00th=[ 684], 80.00th=[ 684], 90.00th=[ 684], 95.00th=[ 684], | 99.00th=[ 684], 99.50th=[ 684], 99.90th=[ 684], 99.95th=[ 684], | 99.99th=[ 684] bw ( KiB/s): min= 5988, max= 8143, per=82.07%, avg=7065.50, stdev=1523.82, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 750=66.67% cpu : usr=0.00%, sys=6.52%, ctx=52, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180123: Sat Sep 5 18:58:24 2026 read: IOPS=0, BW=2152KiB/s (2204kB/s)(4096KiB/1903msec) clat (nsec): min=234050k, max=234050k, avg=234050102.00, stdev= 0.00 lat (nsec): min=234053k, max=234053k, avg=234052638.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 234], 5.00th=[ 234], 10.00th=[ 234], 20.00th=[ 234], | 30.00th=[ 234], 40.00th=[ 234], 50.00th=[ 234], 60.00th=[ 234], | 70.00th=[ 234], 80.00th=[ 234], 90.00th=[ 234], 95.00th=[ 234], | 99.00th=[ 234], 99.50th=[ 234], 99.90th=[ 234], 99.95th=[ 234], | 99.99th=[ 234] bw ( KiB/s): min= 8175, max= 8175, per=94.96%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=1, BW=4305KiB/s (4408kB/s)(8192KiB/1903msec); 0 zone resets clat (msec): min=388, max=1123, avg=756.36, stdev=519.91 lat (msec): min=388, max=1124, avg=756.65, stdev=519.98 clat percentiles (msec): | 1.00th=[ 388], 5.00th=[ 388], 10.00th=[ 388], 20.00th=[ 388], | 30.00th=[ 388], 40.00th=[ 388], 50.00th=[ 388], 60.00th=[ 1116], | 70.00th=[ 1116], 80.00th=[ 1116], 90.00th=[ 1116], 95.00th=[ 1116], | 99.00th=[ 1116], 99.50th=[ 1116], 99.90th=[ 1116], 99.95th=[ 1116], | 99.99th=[ 1116] bw ( KiB/s): min= 8159, max= 8159, per=77.42%, avg=8159.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 500=33.33%, 2000=33.33% cpu : usr=0.00%, sys=9.41%, ctx=51, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180124: Sat Sep 5 18:58:24 2026 write: IOPS=0, BW=3952KiB/s (4047kB/s)(12.0MiB/3109msec); 0 zone resets clat (msec): min=324, max=2012, avg=1005.73, stdev=890.13 lat (msec): min=325, max=2013, avg=1006.79, stdev=890.23 clat percentiles (msec): | 1.00th=[ 326], 5.00th=[ 326], 10.00th=[ 326], 20.00th=[ 326], | 30.00th=[ 326], 40.00th=[ 676], 50.00th=[ 676], 60.00th=[ 676], | 70.00th=[ 2005], 80.00th=[ 2005], 90.00th=[ 2005], 95.00th=[ 2005], | 99.00th=[ 2005], 99.50th=[ 2005], 99.90th=[ 2005], 99.95th=[ 2005], | 99.99th=[ 2005] bw ( KiB/s): min= 8143, max= 8143, per=77.27%, avg=8143.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 750=33.33%, >=2000=33.33% cpu : usr=0.03%, sys=3.76%, ctx=51, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180125: Sat Sep 5 18:58:24 2026 write: IOPS=2, BW=9460KiB/s (9687kB/s)(12.0MiB/1299msec); 0 zone resets clat (msec): min=340, max=483, avg=393.25, stdev=78.39 lat (msec): min=341, max=483, avg=393.72, stdev=78.21 clat percentiles (msec): | 1.00th=[ 342], 5.00th=[ 342], 10.00th=[ 342], 20.00th=[ 342], | 30.00th=[ 342], 40.00th=[ 355], 50.00th=[ 355], 60.00th=[ 355], | 70.00th=[ 485], 80.00th=[ 485], 90.00th=[ 485], 95.00th=[ 485], | 99.00th=[ 485], 99.50th=[ 485], 99.90th=[ 485], 99.95th=[ 485], | 99.99th=[ 485] bw ( KiB/s): min= 5744, max= 8143, per=65.88%, avg=6943.50, stdev=1696.35, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=100.00% cpu : usr=0.00%, sys=9.48%, ctx=97, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=8610KiB/s (8816kB/s), 2152KiB/s-6907KiB/s (2204kB/s-7073kB/s), io=16.0MiB (16.8MB), run=1779-1903msec WRITE: bw=10.3MiB/s (10.8MB/s), 3952KiB/s-9460KiB/s (4047kB/s-9687kB/s), io=32.0MiB (33.6MB), run=1299-3109msec rand-rw: (groupid=0, jobs=1): err= 0: pid=180127: Sat Sep 5 18:58:26 2026 read: IOPS=1, BW=4674KiB/s (4786kB/s)(12.0MiB/2629msec) clat (msec): min=676, max=1037, avg=875.79, stdev=183.36 lat (msec): min=676, max=1037, avg=875.79, stdev=183.36 clat percentiles (msec): | 1.00th=[ 676], 5.00th=[ 676], 10.00th=[ 676], 20.00th=[ 676], | 30.00th=[ 676], 40.00th=[ 911], 50.00th=[ 911], 60.00th=[ 911], | 70.00th=[ 1036], 80.00th=[ 1036], 90.00th=[ 1036], 95.00th=[ 1036], | 99.00th=[ 1036], 99.50th=[ 1036], 99.90th=[ 1036], 99.95th=[ 1036], | 99.99th=[ 1036] bw ( KiB/s): min= 8126, max= 8192, per=100.00%, avg=8159.00, stdev=46.67, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 750=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.23%, sys=10.73%, ctx=271, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180128: Sat Sep 5 18:58:26 2026 read: IOPS=0, BW=1328KiB/s (1360kB/s)(4096KiB/3085msec) clat (nsec): min=879128k, max=879128k, avg=879127807.00, stdev= 0.00 lat (nsec): min=879130k, max=879130k, avg=879130116.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 877], 5.00th=[ 877], 10.00th=[ 877], 20.00th=[ 877], | 30.00th=[ 877], 40.00th=[ 877], 50.00th=[ 877], 60.00th=[ 877], | 70.00th=[ 877], 80.00th=[ 877], 90.00th=[ 877], 95.00th=[ 877], | 99.00th=[ 877], 99.50th=[ 877], 99.90th=[ 877], 99.95th=[ 877], | 99.99th=[ 877] bw ( KiB/s): min= 8192, max= 8192, per=100.00%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2655KiB/s (2719kB/s)(8192KiB/3085msec); 0 zone resets clat (msec): min=584, max=1616, avg=1100.81, stdev=729.94 lat (msec): min=585, max=1617, avg=1101.31, stdev=730.10 clat percentiles (msec): | 1.00th=[ 584], 5.00th=[ 584], 10.00th=[ 584], 20.00th=[ 584], | 30.00th=[ 584], 40.00th=[ 584], 50.00th=[ 584], 60.00th=[ 1620], | 70.00th=[ 1620], 80.00th=[ 1620], 90.00th=[ 1620], 95.00th=[ 1620], | 99.00th=[ 1620], 99.50th=[ 1620], 99.90th=[ 1620], 99.95th=[ 1620], | 99.99th=[ 1620] bw ( KiB/s): min= 8175, max= 8175, per=85.67%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=3.96%, ctx=148, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180129: Sat Sep 5 18:58:26 2026 write: IOPS=0, BW=3578KiB/s (3664kB/s)(12.0MiB/3434msec); 0 zone resets clat (msec): min=260, max=2144, avg=1144.12, stdev=947.24 lat (msec): min=260, max=2144, avg=1144.39, stdev=947.26 clat percentiles (msec): | 1.00th=[ 262], 5.00th=[ 262], 10.00th=[ 262], 20.00th=[ 262], | 30.00th=[ 262], 40.00th=[ 1028], 50.00th=[ 1028], 60.00th=[ 1028], | 70.00th=[ 2140], 80.00th=[ 2140], 90.00th=[ 2140], 95.00th=[ 2140], | 99.00th=[ 2140], 99.50th=[ 2140], 99.90th=[ 2140], 99.95th=[ 2140], | 99.99th=[ 2140] bw ( KiB/s): min= 8159, max= 8175, per=85.59%, avg=8167.00, stdev=11.31, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=3.87%, ctx=58, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180130: Sat Sep 5 18:58:26 2026 write: IOPS=0, BW=4076KiB/s (4173kB/s)(12.0MiB/3015msec); 0 zone resets clat (msec): min=403, max=1434, avg=1004.23, stdev=535.95 lat (msec): min=404, max=1434, avg=1004.52, stdev=535.94 clat percentiles (msec): | 1.00th=[ 405], 5.00th=[ 405], 10.00th=[ 405], 20.00th=[ 405], | 30.00th=[ 405], 40.00th=[ 1183], 50.00th=[ 1183], 60.00th=[ 1183], | 70.00th=[ 1435], 80.00th=[ 1435], 90.00th=[ 1435], 95.00th=[ 1435], | 99.00th=[ 1435], 99.50th=[ 1435], 99.90th=[ 1435], 99.95th=[ 1435], | 99.99th=[ 1435] bw ( KiB/s): min= 7831, max= 8175, per=83.87%, avg=8003.00, stdev=243.24, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.00%, sys=3.52%, ctx=46, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=5311KiB/s (5438kB/s), 1328KiB/s-4674KiB/s (1360kB/s-4786kB/s), io=16.0MiB (16.8MB), run=2629-3085msec WRITE: bw=9542KiB/s (9771kB/s), 2655KiB/s-4076KiB/s (2719kB/s-4173kB/s), io=32.0MiB (33.6MB), run=3015-3434msec